Flour-bolting



D. GEIB.

Mill Bolt.

No, 19,024. Patented 1an. 5,1858.

UNITED STATES PATENT GFFICE.

DAVID GEIB, OI MIFFLINTO\VN, PENNSYLVANIA.

FLOUR-BOLTING.

Specification of Letters Patent No. 19,024, dated January 5, 1858.

To all whom 'it may concern:

Be it known that I, DAvID GEIB, of Mifflintown, in the county of Juniata and State of Pennsylvania, have invented a new and useful Improvement in Flour-Bolting Machinery; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the annexed drawing, making a part of this specification, said drawing being a longitudinal vertical section of my improve- 1nent.

This invention consists in the employment or use of two or more bolts in connection with elevators and conveyers so arranged that the inferior boltings of the first bolt are passed or fed into the second or other bolts, certain portions of the boltings of which are mixed, and others allowed to pass or be discharged separately therefrom.

The object of the invention is to avoid the necessity ot rebolting all the meal good and interior in one and the same bolt, and thereby keep the superior portion free from the substances which darken it or render it speckled.

To enable those skilled in the art to fully understand and construct my invention I will proceed to describe it.

A. B, represents two rectangular boxes or chests, which contain bolts C, D, made and operated as usual or in any proper way. The bolt D, is considerably longer than the bolt C as plainly shown in the drawing, and the depressed ends of both may be adjusted higher or lower so as to give them a greater or less inclination by turning nuts E, E, which are on screw rods F, the lower ends of which rods are attached to the bearings at the depressed ends of the bolts.

G, H, represent two sets of elevators which are constructed in the usual way, viz., buckets being placed on endless straps fitted within trunks or boxes. The elevators are placed at the front ends of the bolts so as to feed the meal into their elevated ends.

At the bottom of each box or chest A, B, there is placed longitudinally a conveyer I. These conveyers are also of usual construction being formed of pins or blades (a.) placed spirally on shaft-s To the bottom of the chest A, and underneath the elevated end of its bolt C, there are attached two spouts (c) (d), each of which is provided with a slide (e) at its upper end. Spouts (f) (f), are also attached to the bottom of the chest underneath the depressed end of its bolt C, the latter communicating with the lower part of the box or chest of the elevators H, and a spout (g) which receives the tailings of bolt C, also communicates with the spout (f) as plainly shown in the drawings.

To the bottom of the chest B, and underneath the elevated end of its bolt D there are attached spouts (it), and spouts (j), are attached to its bottom underneath the depressed end of the bolt D.

The spouts communicate with a box I, which contains a conveyer J. This box I, communicates with the lower part of the box of the elevators H, by means of an inclined spout K.

The operation is as follows The meal from the stones passes into the lower part of the box of the elevators G, and is carried up by said elevators and ted into the elevated end of the bolt C, through an inclined spout A. Both bolts C, D, are rotated by any proper means. The nest quality of flour passes down through the spout (c) into any proper receptacle prepared to receive it, and the second quality passes down through the spout The inferior quality of flour passes down through the spouts (f) (f) into the lower end of the box of the elevators H, as also the tailings from the bolt C, the tailings passing down through the spout These inferior portions are carried up by the elevators G and fed int-o the elevated end of bolt D, through an inclined spout A. The superior boltings of the bolt D, pass down through the spout (it) into any proper receptacle prepared to receive it, while the second quality passes down through the spouts (i) into the box I, and is fed by the conveyer J, into the spout K, through which it passes into the lower part of the box of elevators H, to be again carried up by them into the bolt D. The third quality termed middlings pass down the spouts (j), (j), and the fourth quality ship stuit passes down the spouts From the above description it will be seen that the meal is not rebolted in the bolt C, consequently the extra fine or fancy flour will not be speckled as is now the case to a greater or less extent in consequence of fine portions of bran passing through said bolt during the process of rebolting. The finest quality of flour therefore Will, by my improvement, be superior so far as appearance is concerned to that novv manufactured. In consequence of having the elevators H, spouts (f) (f) (g) (i) of the chest B and oonveyer J, arranged as shown the inferior boltings and tailings of the bolt C, and the second quality of boltings 0f the bolt D may be mixed and rebolted in D.

The conveyers I, serve to convey the different qualities of iour to their respective spouts, and the Whole Works automatically so far as the feeding, conveying and mixing J h A 

